SBOS825D September 2019 – July 2021 TMCS1101
The TMCS1101 includes a proprietary temperature compensation technique which results in significantly improved parametric drift across the full temperature range. This compensation technique accounts for changes in ambient temperature, self-heating, and package stress. A zero-drift signal chain architecture and Hall sensor temperature stabilization methods enable stable sensitivity and minimize offset errors across temperature, and drastically improves system-level performance across the required operating conditions.
Figure 9-2 and Figure 9-3 show the offset error across the full device ambient temperature range. Figure 9-4 and Figure 9-5 show the typical sensitivity. There are no other external components introducing errors sources; therefore, the high intrinsic accuracy and stability over temperature directly translates to system-level performance. As a result of this high precision, even a system with no calibration can reach < 1.5% of total error current-sensing capability.